Lincoln king



(NoModeL) L. KING.

LINK BELT.

No. 549,135. Pateflted Nov. 6, 1895.

d/ Witnesses J fn/vemiar I p/Jarf PW. Q/Mblt WAL ANDREW EGRMMM. PNm-UTHQWASNINGTOMRC.

UNITED STATES PATENT ()EEIcE.

LINCOLN KING, OF NEl/V YORK, N. Y.

LINK

BELT.

SPECIFICATION forming part of Letters Patent N 0. 549,135, dated November 5, 1895.

Application filed July 5, 1894. Serial No. 516,636- NO model.)

To all whom it may concern.-

Be it known that I, LINCOLN KING, a citizen of the United States of America, and a resident of New York, in the State of New York, have invented a new and useful Improvement in Link Belts, of which the following is a specification.

This invention relates to sprocket-chains or metallic ,link belts; and it consists in certain novel combinations of peculiarly-constructed parts, as hereinafter set forth and claimed.

The primary object of this invention is to produce a link belt of great strength and durability for heavy work, as in large bucketelevators, adapted to utilize as nearly as practicable the full tensile strength of the metal of which it is composed, and at the same time to be composed of a single series of interchangeable links and to be readily opened and closed at any point, while free from liability to unfasten itself. The links are, furthermore, adapted to be drop-forged of steel, which adds materially to their strength as compared with cast links, and can be made reversible, as well as interchangeable, and with bars as close together as may be desired, to reduce thedistance'between the sprockets on sprocket-wheels.

A sheet of drawings accompanies this specification as part thereof.

Figure 1 of the drawings is a face view, partly in section, of a portion of a link belt constructed according to this invention. Fig. 2 is an edge View of the same, partly in section, on the line 2 2, Fig. 1. Fig. 3 is a plan View of one of the links detached. Fig. 4 is an end View projected from Fig. 3. Fig. 5 is an enlargement of the section within the circle correspondingly numbered in Fig. 1; and Figs. 6 and 7 are plan views of link belts, illustrating modifications of the same invention.

Like letters of reference indicate corresponding parts in the several figures.

Each of the improved link belts is composed of a single series of interchangeable one-part links A, B, or C, interlocked with each other or unlocked and separated by bringing successive links into an angular locking position, as in dotted lines in Fig. 2, and then inserting or withdrawing them edgewise, each link having a pair of inwardly-projecting recessed pins a and a pair of eyes I), together with a cross-bar or cross-bars 0, side bars (1, and pinsupports 6, in line with said side bars, said eyes and pin-supports being preferably and conveniently circular or round, the stud-pins and eye-holes being concentric therewith, and the elongation of the eye-holes toward the body of the link or in the line of strain, as in Fig. 2, and said side bars and pin supports forming smooth outer edges when the links are connected, as in Figs. 1, 6, and 7. Furthermore, in each of the species said studpins a have lateral projections forming shoulders ta which interlock with the solid metal of the eyes I) when the links are in line with each other or in working -position, as in full lines in Fig. 2, and resist the lateral separation of the links, except when they are in said locking position (represented in dotted lines in Fig. 2), and also the with drawal of the studpins by bending strains should the tensile strain on the belt be sufficient to bend the stud-pins To further resist the withdrawal of the stud-pins by excessive strain, they are preferably extended so as to come in contact with each other at mid-width of the belt, as in Figs. 1 to 6, inclusive, the two stud-pins of each link being provided, respectively, with an end projection a and an end socket a", magnified in Fig. 5. Such end projections and end sockets are necessarily concentric with the axes of articulation between successive links and are preferably conoidal in shape, as in Fig. 5. The stud-pins at each articulation are thus securely interlocked with each other and the tensile strength of the belt is very greatly increased, the tendency of the stud-pins under excessive strain on the belt being to yield in opposite directions in the plane of the belt, as represented by the arrows f and gin Figs. 1 and 5, which tendency is practically neutralized by interlocking their extremities with each other, as above.

In the species represented-by Figs. 1 to 5, inclusive, each of the links A, being otherwise of the construction above described, has a pair of the cross-bars c, forming, in connection with the side bars d, clear rectangular openings to receive the sprockets. In the species represented by Fig. 6 shorter links B are constructed with a single cross-bar c in each link. ith this form of link (B, Fig. 6) the sprockets may be brought very close together, which is sometimes desirable. In the species represented by Fig. 7 the respective links C have shortened and button-headed stud-pins a. They are otherwise of the construction represented by Figs. 1, 2, 3, and 4 and above described. Links of this form (C, Fig. 7) are individually reversible, end for end, as well as interchangeable, both ends of each link being alike. Other like modifications will suggest themselves to those skilled in the art.

. part links interlocked with each other at each articulation by a pair of stud-pins projecting inwardly from the lateral edges of the links and eyes through which said stud-pins extend, the extremities of said stud-pins being interlocked with each other by means of an end-projection on one and an end-socket in the other concentric with the axis of articulation,substantially as hereinbefore specified.

The combination in a link-belt of interchangeable one-part links interlocked with each other at each articulation, each link having at each end a stud-pin projecting in- Wardly from a lateral edge of the link and an eye to receive a like stud-pin on an adjoining link, and said stud-pins having withdrawalresisting shoulders Which engage with solid metal around the eye-holes when the belt is stretched, substantially as hereinbefore specified.

4. The combination, in a link-belt, of interchangeable one-part links interlocked with each other at each articulation, each link having at each end a'stud-pin projecting inwardly from a lateral edge of the link and an eye to receive a like stud-pin upon an adj oining link, the extremities of said stud-pins being interlocked with each other by means of an end-projection on one and an end-socket in the other concentric with the axis of articulation,substantially as hereinbefore specified.

5. The combination, in a link-belt, of interchangeable one-part links interlocked with each other at each articulation, each link having at each end a stud-pin projecting inwardly from a lateral edge of the link, an eye to receive a like stud-pin on an adjoinin link, and a cross-bar parallel with the axis of articulation, said stu d-pins being provided in common with Withdrawal-resisting shoulders and having respectively an end-projection and an end-socket to interlock the studpins of successive links with each other, substantially as hereinbefore specified.

LINCOLN KING. lVitnesses:

LAVINIA J ACKSON, G. M. WHIT EY. 

